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 Constants, Data Types, and Variables
 
 ■ The following sections contain summary information about constants, data
   types, and variables:
 
   ◄Constants Summary►  Information about constants, including:
                        • Global constants        • Literal constants
                        • Local constants         • Numeric constants
                        • Symbolic constants
 
   ◄Data Types Summary► Information about data types, including:
                        • DEFtype statements      • Elementary data types
                        • ISAM data types         • Type conversion rules
                        • Type-declaration suffix • User-defined types
 
   ◄Variables Summary►  Information about variables, including:
                        • Array storage summary   • AS declarations
                        • Assigning values        • Automatic and static
                        • Declaring arrays        • Declaring simple variables
                        • Naming conventions      • Scope rules
                        • STATIC statement        • SWAP statement
                        • Storage and memory